H7344 Flap Disc Abrasive Type Coated Abrasive Material Zirconia Alumina Grade Medium Backing Plate Material Phenolic Connector Size 7/8 in Connector Type Unthreaded Hole Density Rating Standard Flap Disc Type Type 29 Overall Diameter 6 in Quick Change System Not Applicable Series Tiger Backing Material Phenolic Backing Weight X Grit 80 Maximum Operating Speed 10 200 RPM